-- to a real issue facing so many parents and their children as they prepare to head off to college. With so much money on the line many turn to the schools that show the best numbers the best chance is at a new job when you graduate. But can you believe what some of those for profit colleges tell -- ABC's mark Greenblatt on the case tonight. In my opinion it's there are wretched fraud. Jason so -- talking about one of the largest for profit college corporations in the country he DNC. The education management corporation which runs more than 100 colleges offering everything from a masters of designed to degrees in nursing you could make it happen. With brown Mackie college this former admissions supervisor turned whistle blower is suing. Alleging the company -- prospective students and marketing materials. By falsely inflating success statistics. But he manipulated the job placement rates by counting students working in -- job that they did not need the degree for you think mrs. All intentional it is intentional it's the business model. Case in point single mother Sarah Fisher in Indiana and elegant and lights and I am angry about it Fisher says she got sucked in by a recruiter for brown Mackie. It's on the idea how to get a better job that -- be making 35040000. Dollars a year. But so -- gave ABC news an exclusive look at internal company documents. Which show we DNC still counting -- 161000. Dollar a year job as a success and -- on fire. In customer service she got the job long before graduation but the school claims it's related to her degree. Airlines I placed myself from that job not brown -- And here's more so -- says the company claims job success for this fashion marketing -- this accounting major and his business grad. But he says -- c.'s own documents show this one is actually working for minimum wage selling shoes. One works at McDonald's the other -- monitor. Eighty MC declined an interview with ABC news the road asked to say we believe the claims raised by Jason so back are wholly with out merit saying he was not employed -- career services and that the company has a -- code of ethics we asked senator Dick Durbin to review so -- document. It's it's just plain fraud and your whistle blower has brought it to light. In these students sucked in by these -- sign -- for debt sign up for these courses that lead to nowhere Sarah Fisher just feels duped. 124000 dollars and a -- for a degree McCain is. So that's claims also got a boost from a federal judge who reviewed the evidence of job placement fraud. David that judge said the case should be allowed to move forward in federal court -- you've got Washington asking questions to mark thanks very much.

This transcript has been automatically generated and may not be 100% accurate.

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